A control strategy to stabilize PWM dc-dc converters with input filters using state-feedback and pole-placement

Iftikhar, M. Usman; Godoy, Emmanuel; Lefranc, Pierre; Sadarnac, Daniel; Karimi, Charif

doi:10.1109/intlec.2008.4664089

Cited by 20 publications

(10 citation statements)

References 7 publications

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“…After rearranging (4)- (7) and eliminating d(s), v o (s) and i L (s), the input admittance of the CPL can be derived as shown in (8).…”

Section: The Negative Impedance Instability Problem Of Dc/dc Convmentioning

confidence: 99%

“…In [8], an active stabilization method by pole placement is proposed. In this method, two sensors are needed, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, in [9], the details on how to change the input impedance using the feedforward stabilizing loop are not mentioned. Furthermore, the active methods proposed in [8], [9] are for stabilization of DC/DC converter in current mode control. In [10], an active stabilization method is proposed for DC/DC converter in voltage mode control and its LC input filter.…”

Section: Introductionmentioning

confidence: 99%

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Investigation on active method for stabilization of LC input filter and DC/DC buck converter under voltage mode control

2015

2015 IEEE 11th International Conference on Power Electronics and Drive Systems

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The switching mode power electronic converter with feedback loop control functions as a constant power load (CPL). CPLs have negative input impedance which may cause system instability. Both passive and active stabilization methods can solve this problem. However, active stabilization methods are more power efficient. Several active stabilization methods have been proposed for DC/AC inverter based CPLs. However, active stabilization methods for DC/DC converter based CPLs under voltage mode control have received little attention. In this paper, an active method is proposed for stabilization of DC/DC converter in voltage mode control. A systematic investigation on this active method is carried out. In the active method, a feedforward loop is designed and fed to the voltage control loop of the DC/DC converter. This feedforward loop is a combination of a bandpass filter and a proportional gain. This feedforward loop can create a virtual resistor and a virtual capacitor in parallel with the CPL. And this virtual circuit can modify the negative input impedance of the CPL to satisfy the impedance criterion. Experimental results are reported to verify the analysis and the effectiveness of the active method.

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“…After rearranging (4)- (7) and eliminating d(s), v o (s) and i L (s), the input admittance of the CPL can be derived as shown in (8).…”

Section: The Negative Impedance Instability Problem Of Dc/dc Convmentioning

confidence: 99%

“…In [8], an active stabilization method by pole placement is proposed. In this method, two sensors are needed, i.e.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation on active method for stabilization of LC input filter and DC/DC buck converter under voltage mode control

2015

2015 IEEE 11th International Conference on Power Electronics and Drive Systems

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show abstract

“…The existing active control methods are categorized as: virtual impedance control [10,11], outerloop control [12], and full state control [6,[13][14][15][16][17]. The virtual impedance control approach proposed in [10] is similar to the discussed passive method where a variable structure circuit is designed and applied in parallel or series to the LC filter and stabilization is achieved.…”

Section: Introductionmentioning

confidence: 99%

Voltage regulation of DC–DC boost converter with input filter: hybrid and embedded PWM control approaches

Sinafar,

Badamchizadeh

2024

Nonlinear Dyn

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“…Another approach to avoid the controlled system instability is to control all the state variables by using the state‐space method. In [14], the authors attempted to control the system by using the state feedback and the pole placement method with a full‐order model. However, in this approach, the number of sensors required for the voltage and current is larger than that for the control method using a stabiliser.…”

Section: Introductionmentioning

confidence: 99%

Lyapunov function‐based improved switching command for a boost converter with an inductor–capacitor input filter

Gavagsaz-Ghoachani

Phattanasak

Martin

et al. 2020

IET power electron.

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This study presents a control method for DC–DC switching power converters to avoid the instability caused by the interaction between a tightly controlled switching converter and an input low‐pass filter. The proposed method is based on the Lyapunov stability criterion. A non‐linearised model is established, and the instantaneous quantities of the state variables are considered. The switching command is formulated by calculating the stability of the system. The inductor current and voltage across the filter capacitor, along with the state variables in the switching converter, follow the corresponding references. A boost converter is considered to demonstrate the associated effectiveness. The results of several simulations and experiments pertaining to the start‐up, tracking, and regulation stages validate the proposed control approach. Moreover, the robustness of the approach against variations in the parameters of the controlled system is examined experimentally. To demonstrate the superiority of the proposed method, the method is compared with the proportional–integral, fuzzy, and flatness‐based controllers.

show abstract

A control strategy to stabilize PWM dc-dc converters with input filters using state-feedback and pole-placement

Cited by 20 publications

References 7 publications

Investigation on active method for stabilization of LC input filter and DC/DC buck converter under voltage mode control

Investigation on active method for stabilization of LC input filter and DC/DC buck converter under voltage mode control

Voltage regulation of DC–DC boost converter with input filter: hybrid and embedded PWM control approaches

Lyapunov function‐based improved switching command for a boost converter with an inductor–capacitor input filter

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